Bel-Art F18852-0016 81-Place Plastic Freezer Storage Boxes; Assorted Colors, 5.5 x 5.5 x 1.9 in. (Pack of 5) Long lasting durability; will not break down with exposure to moisture and heavy use; autoclavable polypropylene construction; use at -80C to +121C (-112F to +249F) Provides compact storage and keeps cryo vials organized: 81-place 9 x 9 row boxes hold 0.5, 1.5 and 2.0ml tubes and cryo vials Secure fitting, lift-off lid is translucent for clear viewing of samples; alphanumeric indexing for easy tracking of individual samples; matte panels on two sides of lid for trouble-free labeling Overall dimensions: 14 x 14 x 4.8cmH (5.5 x 5.5 x 1.9"); one of each - blue, green, orange, purple, natural; pack of five Stacks securely with molded in 'no slide' features; do not fit in standard freezer racks